Should Roof Sheathing Overhang Fascia

This indicates the upper edge of the first row of roof sheathing leaving enough overhang that the subfascia and fascia will tuck neatly underneath when the time comes.

Should roof sheathing overhang fascia.

Our illustration above shows proper placement of the roof drip edge atop the roof sheathing before installation of roofing felt or ice and water shield and spaced a bit away from the fascia board to improve its drainage. The roof sheathing comes down and ends on top of the 1 x fascia. Don t overhang the sheathing at all. This is to just enough to cover the 3 4 x6 actual fascia.

A shed roof overhang is something most homeowners don t think about until their standing in the rain trying to get the door unlocked or fretting about all the water that s suddenly pooling around the shed s foundation. If not whatever you decide to use to cover the sub fascia aluminum cap plowed cedar hardi trim board. If the drip edge is laid right up against the fascia or rafters then because of surface tension the water runs right up against the fascia and underneath the soffit. Put that up first.

Use your speed square on the fascia board and run the sheathing down to that. The drip edge should be installed over a piece of 1 2 furring strip so that it stands off from the fascia or rafter tails. Now that i ve modeled what i was. Building a shed roof with an overhang is an important part of protecting your shed and thus should not be overlooked.

Measure up the rafter 45 3 4 inch from the cut end of the truss tail and snap a line along the trusses. The fascia is the wide board that s installed on edge and runs horizontally along the edge of the roof. I ve trimmed my roof sheathing to run between 5 8 and 3 4 over the sub fascia. Yes the plywood should be flush of slightly shy of the outside of the sub fascia board.

Then i do a metal drip edge to cover it all. Use 2x6 for fascia board.